Mystery Bird

This looks exactly like a Canada goose as you're walking down the road.    Only, geese don't roost like that on top of hay bales.  

I was confused.  

My eyes [middle aged, not so good anymore eyes] were convinced that it was a goose.  

I kept waiting for it to spook as we got closer, but it didn't even move -- yet another clue that it wasn't really a goose. 

I'll let you guess what it really was.